Home / 385,022.72-577,386.45-132,256.09

Finding the Fourth Proportional to 385,022.72, 577,386.45 and 132,256.09

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Solution

The fourth proportional to 385,022.72, 577,386.45 and 132,256.09 is: 198,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,022.72 : 577,386.45 = 132,256.09 : x
  2. Step 2: Convert to fraction form
    385,022.72/577,386.45 = 132,256.09/x
  3. Step 3: Cross multiply
    385,022.72x = 577,386.45 × 132,256.09
  4. Step 4: Simplify right side
    385,022.72x = 76,362,875,389.68
  5. Step 5: Solve for x
    x = 76,362,875,389.68/385,022.72
  6. Step 6: Final answer
    x = 198,333.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.